Malware Analysis Report

2025-06-15 23:51

Sample ID 241113-rfgpzstapd
Target a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d
SHA256 a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d
Tags
emotet epoch4 banker discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d

Threat Level: Known bad

The file a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d was found to be: Known bad.

Malicious Activity Summary

emotet epoch4 banker discovery trojan

Emotet

Emotet family

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 14:07

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 14:07

Reported

2024-11-13 14:10

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2696 wrote to memory of 3020 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3020 wrote to memory of 3040 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll",DllRegisterServer

Network

N/A

Files

memory/3020-0-0x0000000001D80000-0x0000000001DA6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 14:07

Reported

2024-11-13 14:10

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

138s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

Signatures

Emotet

trojan banker emotet

Emotet family

emotet

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\regsvr32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4596 wrote to memory of 1296 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4596 wrote to memory of 1296 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4596 wrote to memory of 1296 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1296 wrote to memory of 2652 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1296 wrote to memory of 2652 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1296 wrote to memory of 2652 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a3cc0ea68c18bab73d24a145a436c96441016328dd78375ef100dd25ad4a888d.dll",DllRegisterServer

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1296-0-0x0000000002E00000-0x0000000002E26000-memory.dmp